package fglrx 2:9.000-0ubuntu3 failed to install/upgrade: subprocess installed post-removal script returned error exit status 1

[Giuseppe Fierro]

updating 12.04 to 12.10. Things did not go so well it seems with this upgrade and I have this error message, I cant start unity

ProblemType: Package
DistroRelease: Ubuntu 12.10
Package: fglrx 2:9.000-0ubuntu3
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.6.1-0ubuntu3
AptOrdering:
 fglrx: Purge
 ubuntu-desktop: Purge
 lightdm-remote-session-uccsconfigure: Purge
 lightdm-remote-session-freerdp: Purge
 lightdm: Purge
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Fri Oct 19 15:30:50 2012
DistUpgraded: 2012-10-19 14:27:15,259 DEBUG enabling apt cron job
DistroCodename: quantal
DistroVariant: ubuntu
DkmsStatus: fglrx, 9.000, 3.5.0-17-generic, x86_64: installed
ErrorMessage: subprocess installed post-removal script returned error exit status 1
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI RS880M [Mobility Radeon HD 4200 Series] [1002:9712] (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:1440]
 Advanced Micro Devices [AMD] nee ATI Madison [Radeon HD 5000M Series] [1002:68c1] (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:1440]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
JockeyStatus:
 kmod:fglrx - ATI Fire GL (Proprietary, Enabled, In use)
 kmod:fglrx_updates - Video driver for the AMD graphics accelerators (Proprietary, Disabled, Not in use)
MachineType: Hewlett-Packard HP Pavilion dv6 Notebook PC
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-17-generic root=UUID=fee1c0fa-d9d2-4dfb-bed7-224874a1b638 ro quiet splash vt.handoff=7
SourcePackage: fglrx-installer
Title: package fglrx 2:9.000-0ubuntu3 failed to install/upgrade: subprocess installed post-removal script returned error exit status 1
UnitySupportTest:
 Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with exit code 1: X Error of failed request: BadRequest (invalid request code or no such operation)
   Major opcode of failed request: 153 (GLX)
   Minor opcode of failed request: 19 (X_GLXQueryServerString)
   Serial number of failed request: 22
   Current serial number in output stream: 22
UpgradeStatus: Upgraded to quantal on 2012-10-19 (0 days ago)
dmi.bios.date: 04/11/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.28
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 1440
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 67.33
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.28:bd04/11/2011:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvr059C110000243010000020100:rvnHewlett-Packard:rn1440:rvr67.33:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: HP Pavilion dv6 Notebook PC
dmi.product.version: 059C110000243010000020100
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.8.4-0ubuntu3
version.fglrx-installer: fglrx-installer N/A
version.ia32-libs: ia32-libs 20090808ubuntu36
version.libdrm2: libdrm2 2.4.39-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120913.8637f772-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu3